[Note on Ceramic Disc Replacement]: It is equipped with 6 spare fogging discs (ceramic discs), which can greatly extend the life of the machine. Note: In order to enhance the waterproof performance, we have increased the torque of the product seal. Please use the 4mm Allen key (Included) to open it through the small holes reserved under the screw cap. After replacing, please make sure to dry the chamber and tighten the nut to prevent damage caused by water ingress. [Environmentally Friendly]: The sprayer does not need to be heated or use chemicals to produce fog. It adopts electronic ultra-frequency oscillation with an frequency of 1.7MHz to produce mist through physical oscillation, which will not cause harm to humans and animals. [Safe and Easy to Operate]: Place the IP68 waterproof fogger face up in the water and plug it in to produce a large amount of water mist. There is a water level detector on the top, during operation, when the water depth is more than 8cm, please use the included buoy to maintain the right water level; when there is a lack of water, it automatically cuts off the power, safe and reliable. [12 LED Lights]: 3 colours of LED lights alternately flash in turn, creating a magical atmosphere for your pond or various holiday parties in the garden. Please note that this product is suitable for outdoor use, or large capacity vessels such as big Halloween cauldrons. [1500 ml/hour] : The 3-head ultrasonic fogger uses 3 high-frequency resonating discs to produce natural water mist from the surface of the water, increg humidity, reducing dust and freshening the air. The ideal amount of water mist will give your garden a thick and beautiful water mist landscape.